LG WD-1409RD WDP1103RD WM3455H Series Service Manual & Repair Guide

WASHING MACHINE SERVICE MANUAL CAUTION READ THIS MANUAL CAREFULLY TO DIAGNOSE TROUBLES CORRECTLY BEFORE OFFERING SERVICE. MODEL : WD-1409RD(1~9)/WDP1103RD(1~9)/WM3455H* website :http://biz.lgservice.com e-mail : http://LGEservice.com/techsup.html Downloaded from www.Manualslib.com manuals search engine

P/No.: MFL30574764 Downloaded from www.Manualslib.com manuals search engine

2 CONTENTS 1. SPECIFICATIONS ............................................................................................................................. 3 2. FEATURES & TECHNICAL EXPLANATION ..................................................................................... 4 3. PARTS IDENTIFICATION ................................................................................................................. 6 4. INSTALLATION .................................................................................................................................. 7 5. OPERATION ................................................................................................................................... 12 6. WIRING DIAGRAM / PCB LAYOUT / PROGRAM CHART ............................................................ 14 7. TROUBLESHOOTING ......................................................................................................................18 7-1.BEFORE PREFORMING SERVICE ......................................................................................... 18 7-2.LOAD TEST MODE .................................................................................................................. 18 7-3.HOW TO KNOW THE WATER LEVEL FREQUENCY ............................................................. 19 7-4. HOW TO KNOW TO TEMPERATURE OF EACH THERMISTOR AT OPERATING CONDITION .. 19 7-5.ERROR DISPLAY ..................................................................................................................... 20 7-6.TROUBLESHOOTING WITH ERROR ..................................................................................... 21 • IE (Water Inlet Error) .............................................................................................................. 21 • UE (Unbalanced Error) ........................................................................................................... 22 • OE (Water Outlet Error) .......................................................................................................... 23 • FE (Flow over Error) ............................................................................................................... 25 • PE (Pressure Sensor S/W Error) ............................................................................................ 26 • DE (Door open Error) ............................................................................................................. 27 • tE (Thermistor (Heating) Error) ............................................................................................... 28 • LE (Motor Lock Error) ............................................................................................................. 29 • DHE (Dry Heater Error) .......................................................................................................... 31 • Dry Heater Trouble ................................................................................................................. 32 • Dry Fan Motor Trouble ............................................................................................................ 33 8. TROUBLESHOOTING ELSE .......................................................................................................... 34 • No Power ................................................................................................................................ 34 • Vibation & Noise in spin ......................................................................................................... 35 • Detergent & Softener does not flow in .................................................................................... 36 • Water Leak ............................................................................................................................. 37 9. DISASSEMBLY INSTRUCTIONS ................................................................................................... 39 10. EXPLODED VIEW ......................................................................................................................... 47 Downloaded from www.Manualslib.com manuals search engine

3 1. SPECIFICATION ITEM POWER SUPPLY PRODUCT WEIGHT OPERATION WATER PRESSURE CONTROL TYPE WASH & DRY CAPACITY DIMENSION WASH PROGRAM RINSE DOOR SWITCH TYPE WATER LEVEL RESERVATION SENSING OF THE LAUNDRY AMOUNT FUZZY LOGIC DISPLAY OF THE REMAINING TIME ERROR DIAGNOSIS POWER AUTO OFF CHILD LOCK AUTO RESTART TIME SAVE ELECTRICITY CONSUMPTION WASHING SPIN DRAIN MOTOR STEAM HEATER WASH HEATER DRY HEATER REVOLUTION SPEED WASH SPIN No Spin/400/800/1000/1400 50rpm 1.0-8bar (100-800kPa) Electronic Refer to the Rating Label 600mm(W)x640mm(D)x850mm(H) Cotton, Cotton Quick. Synthetic, Delicate, Hand Wash,Wool, Quick30, Duvet, Baby Care Rinse+Spin, Rinse + , Normal+Hold Bi-Metal type 10 steps (by sensor) From 3 hours to 19 hours Adapted Adapted Adapted 10 items Adapted Adapted Adapted Adapted 140W 440W 30W 1100W 2000W 1500W 127V~, 60Hz 72kg WD-1409RD(1~9)/WDP1103RD(1~9)/WM3455H* Downloaded from www.Manualslib.com manuals search engine

4 2.FEATURES & TECHNICAL EXPLANATION 2-1. FEATURES Direct Drive System The advanced Brushless DC motor directly drives the drum without belt and pulley. Water Circulation Spray detergent solution and water over the load over continu. Clothes are soaked more quickly and thoroughly during wash cycle. The detergent suds can be removed more easily by the water shower during rinse cycle. The water circulation system uses both water and detergent more efficiently. Built-in Heater Internal heater automatically heats the water to the best temperature on selected cycles. Child Lock The Child lock prevents children from pressing any button to change the settings during operation. More economical by Intelligent Wash System Intelligent Wash System detects the amount of load and water temperature, and then determines the optimum water level and washing time to minimize energy and water consumption. Low noise speed control system By sensing the amount of load and balance, it evenly distributes load to minimize the spinning noise level. Automatic Wash Load Detection Automatically detects the load and optimizes the washing time. Downloaded from www.Manualslib.com manuals search engine

5 2-2. DETERMINE WASHING TIME BY FUZZY LOGIC To get the best washing performance optimal time is determined by sensing of water temperature, selected washing temperature and laundry amount. 2-3. WATER LEVEL CONTROL This model adopts a pressure sensor which can sense the water level in the tub. Water supply is stopped when the water level to the preset level, then washing program proceeds. Spinning does not proceed until the water in the tub reduces to a certain level. water temperature washing time rinse time the best washing performance spin rhythm, time laundry amount FUZZY LOGIC selected washing temperature SENSING EFFECT PROCESSING DETERMINATION 2-4. THE DOOR CAN NOT BE OPENED While program is operating. While Door Lock light turns on. Downloaded from www.Manualslib.com manuals search engine

6 3.PARTS IDENTIFICATION Drawer Drum Door Drain Hose Adjustable Feet Shipping Bolts Control Panel Power Pulg Drain Pump Filter Drain Plug Lower Cover Cap If the supply cord is damaged, it must be replaced by the manufacturer or its authorized service technician in order to avoid a hazard. ACCESSORIES Inlet hose(2EA) Spanner Downloaded from www.Manualslib.com manuals search engine

7 4.INSTALLATION INSTALLATION The appliance should be installed as follows. Check the conditions of installation area. 1. Check level ground. On raised foundations or upper level homes, the vibrations can be caused by the type of flooring. It may be necessary to move the machine to a different area in the home or have the floor reinforced to properly support the operation of the unit. 2. Check humidity or any foreign objects under the feet. Clean the floor, and there should not be any foreign objects under the feet. If the unit has foreign objects underneath the feet, this will prevent the unit from being leveled properly and will cause vibrations and slipping. Remove any foreign objects, if any from underneath the machine and level unit properly. See below for examples of foreign objects. 1 Open the box and check appliance condition. 2 horizontal Capet Paper Laminated paper Washer Packing Support (Packing support may not be used depending on models.) Wrench This leveling (or spanner) wrench must be used to remove the shipping bolts and level the unit. This should be kept for future use. Base Packing Purchased stopper Downloaded from www.Manualslib.com manuals search engine

8 Use spanner to remove transit bolts. 3 Confirm the distance between the appliance and the wall. 4 The tap connection and hose connection must be parallel. 5 Without removal of transit bolts Spin noise and shaking. X 4 EA Transit bolts More than 2cm If the distance is less than 2cm, the water supply hose will kink or fold. 1. Normal Tap without thread & screw type inlet hose. 1. Unscrew the fixing screw to attach the tap. 2. Push the connector up till the rubber packing is in tight contact with the tap. Then tighten the 4 screws. 3. Push the water supply hose vertically upwards so that the rubber packing within in the hose can adhere completely to the tap and then tighten it by screwing it to the right. 1. Untighten the upper connector screw. 2. Push the upper connector up till the rubber packing is in tight contact with the tap. Then tighten the 4 screws. 3. Connect the water supply hose to the middle connector, pushing the plate down. • In case the diameter of the tap is large remove the guide plate. • Turn the middle connector not to have water leaked. • Make sure that the rubber seal is inside the hose connector. • To separate the water supply hose from the middle connector shut off the tap. Then pull the inlet hose down, pushing the plate down. • Make sure that there are no kinks in the hose and that it is not crushed. 2. Normal Tap without thread & one touch type inlet hose (Single inlet models) Upper Connector Fixing screw Guide plate Connector Rubber packing Upper Connector Rubber packing Upper Connector Plate Water supply hose Rubber seal Hose connector Upper Connector Middle connector Rubber packing Upper Connector Fixing screw Middle connector Rubber packing Upper Connector Plate Water supply hose Downloaded from www.Manualslib.com manuals search engine

9 Connect Drain Hose. 6 Connect power plug. 7 If the drain hose is not installed properly, the unit will not drain properly. This allows water to back flow into the unit which can cause odors. Refer to Owner Manual for proper drain hose installation. The odor could also be coming from the home’s drain to which the drain hose is attached. In this type of drain hose installation, the odor could be coming from the standpipe. This odor can come up the drain hose and into the unit. Pour a cup or two of bleach or vinegar down the home drain and let it sit for 24 hours before running another cycle. This will help eliminate odor from the home drain. If a cycle is started too soon after doing this, it will not help the issue. Connect the power plug to the wall outlet. Avoid connecting several electric devices, it may be the cause of a fire. about 100 cm about 145 cm about 105 cm Laundry tub Max. 100cm min. 60cm Max. 100cm min. 60cm Retainer Tie strap Hose min. 60 cm max. 100 cm Downloaded from www.Manualslib.com manuals search engine

LG WD-1409RD WDP1103RD WM3455H Series Service Manual & Repair Guide

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